ROBERT AMSTER MD-RANCHO PENASQUITOS
NPI 1144528829
Emergency Medicine in Tustin, CA

NPI Status: Active since March 04, 2011

Contact Information

18231 IRVINE BLVD
STE 204
TUSTIN, CA
ZIP 92780
Phone: (714) 389-5700
Fax: (714) 389-6973

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  • Organization
  • Emergency Medicine

About ROBERT AMSTER MD-RANCHO PENASQUITOS

This page provides the complete NPI Profile along with additional information for Robert Amster Md-rancho Penasquitos, a provider established in Tustin, California operating as a Emergency Medicine. The healthcare provider is registered in the NPI registry with number 1144528829 assigned on March 2011. The practitioner's primary taxonomy code is 207P00000X with license number G34265 (CA). The provider is registered as an organization and their NPI record was last updated 15 years ago. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The authorized official of this NPI record is Robert Amster Md (Owner)

NPI
1144528829
Provider Name
ROBERT AMSTER MD-RANCHO PENASQUITOS
Entity Type
Organization
Location Address
18231 IRVINE BLVD STE 204 TUSTIN, CA 92780
Location Phone
(714) 389-5700
Location Fax
(714) 389-6973
Mailing Address
18231 IRVINE BLVD STE 204 TUSTIN, CA 92780
Mailing Phone
(714) 389-5700
Mailing Fax
(714) 389-6973
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
03-04-2011
Last Update Date
03-04-2011
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Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Emergency Medicine

Taxonomy Code
207P00000X
Type
Allopathic & Osteopathic Physicians
License No.
G34265
License State
CA
Taxonomy Description
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.

Group Taxonomy 193400000X SINGLE SPECIALTY GROUP

This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

ROBERT AMSTER MD

Authorized Official Title
OWNER
Authorized Official Phone
(714) 389-5700

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1144528829, we treat the final digit (9) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 61. The final step is to find the difference between that total and the next multiple of ten (70 - 61 = 9).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
1
Unchanged
Pos 3
4
Doubled → 8
Pos 4
4
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
2
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
8
Unchanged
Pos 9
2
Doubled → 4
Check
9
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 4 → 8 5 → 10 → 1 8 → 16 → 7 2 → 4

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 1 + 8 + 4 + 1 + 0 + 2 + 1 + 6 + 8 + 4 + 24 = 61

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 61 is 70. The difference is the calculated check digit.

70 - 61 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1144528829.

Other Providers at the Same Location


The following 6 providers are registered at the same or a nearby location.

Internal Medicine
18231 IRVINE BLVD, SUITE 204
TUSTIN, CA 92780
Emergency Medicine
18231 IRVINE BLVD, STE 204
TUSTIN, CA 92780
Emergency Medicine
18231 IRVINE BLVD, STE A
TUSTIN, CA 92780
Emergency Medicine
18231 IRVINE BLVD, STE A
TUSTIN, CA 92780
Clinic/Center (Urgent Care)
18231 IRVINE BLVD, STE 204
TUSTIN, CA 92780
Clinic/Center (Urgent Care)
18231 IRVINE BLVD, SUITE 204
TUSTIN, CA 92780

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1144528829, enumerated as an "organization" on March 04, 2011.

The provider is located at 18231 IRVINE BLVD STE 204 TUSTIN, CA 92780 and the phone number is (714) 389-5700.

Emergency Medicine with taxonomy code 207P00000X.